Image retrieval apparatus

摘要

Embodiments describe an image retrieval apparatus. The image retrieval apparatus includes an unlabelled image selector for selecting one or more unlabelled image(s) from an image database; and a main learner for training in each feedback round of the image retrieval, estimating relevance of images in the image database and a user's intention, and determining retrieval results, wherein the main learner makes use of the unlabelled image(s) selected by the unlabelled image selector in the estimation. In addition, the image retrieval apparatus may also include an active selector for selecting, in each feedback round and according to estimation results of the main learner, one or more unlabelled image(s) from the image database for the user to label.

主权项

1. An image retrieval apparatus, comprising:
a main learner for training in each feedback round of the image retrieval, estimating relevance of images in an image database and a user's intention, and determining retrieval results; an active selector for selecting, in each feedback round and according to estimation results of the main learner, one or more unlabelled image(s) from the image database for the user to label; and an output unit for outputting the retrieval results determined by the main learner and the one or more unlabelled image(s) selected by the active selector; wherein, the active selector comprises an information capacity measurement calculation unit and a selection unit, the information capacity measurement calculation unit calculates information capacity of each of the unlabelled images in the image database, and the selection unit selects the unlabelled images to be provided to the user for labeling in accordance with calculation results of the information capacity measurement calculation unit.